Assessing crew risks on a powerboat Should you require all crew on your boat to wear lifejackets? If so, under what conditions? Should you restrict access to some parts of the vessel when underway? Should those rules change in different weather conditions, or with different kinds of boat traffic nearby? I suspect that many skippers make these decisions based on gut feeling and on who they side with in bar or forum arguments. Frankly, I don't think that's the best way to make critical safety decisions. Risk assessment is a very well-developed art. Not every decision calls for a formal risk assessment, but putting a bit of logical thought into your key safety policies is certainly a prudent idea. Today, I present an informal walk-through of this process for the Starwind 860 trimaran we're currently building.